Paid Search vs. Social: Where Should Your Ad Budget Go in 2025?

The Misconception: It's Either Search or Social

Plenty of marketers still treat paid search and social advertising as two ends of a single spectrum—you're either a “search person” or a “social person.” That’s wrong. The real question isn't which platform is better; it's which one fits the job you're trying to do. Search captures high-intent demand; social creates it. They're not substitutes; they're different tools. And the data backs that up: in the U.S., search pulled in $114.2 billion in 2025, while social took $117.7 billion (IAB/PwC). We're spending nearly equal amounts on both, so the decision is hardly trivial.

What Each Platform Is Built For

Search ads are the classic direct-response workhorse. People type a question or a product name, and you show up with an answer or an offer. That's why search CTR benchmarks run 2% to 5%—when someone is actively looking, they're more likely to click (Google Ads Help). Social, on the other hand, interrupts the scroll. It's built for awareness and engagement, with typical CTRs of 0.5% to 1.5% (Google Ads Help). That doesn't make social weak; it makes it a different stage of the funnel. If you need to introduce a new product to cold audiences, social wins. If you need to capture someone who's already decided to buy, search wins.

Criterion 1: Intent and Audience

Search is all about intent. The user has already told you what they want. Your job is to match that intent with a relevant ad and landing page. Social, by contrast, is about finding people who might need you, even if they haven't thought about it yet. You can target by interests, behaviors, and lookalikes. That's powerful for building a brand or launching a product. But it also means you're paying to interrupt people who aren't necessarily ready to buy. If you have a limited budget and need sales this week, search is the safer bet. If you're playing the long game, social can build a relationship that pays off later.

Criterion 2: Cost and Efficiency

Let's talk money. Search ads are priced per click (CPC) or per thousand impressions (CPM), but the default is CPC. You pay only when someone clicks—that's the definition of pay-per-click (US Chamber). Social also uses CPC or CPM, but the engagement model means you're often paying for impressions or interactions that don't directly convert. That's not a knock; it's just a different cost structure. For a concrete example: say you spend $500 on search and get 250 clicks—your CPC is $2 (Google Ads Help). On social, that same $500 might get you 50,000 impressions, but only 500 clicks—a $1 CPM and a $1 CPC. The cost per click looks better on social, but the click-through rate is far lower. You have to think about cost per conversion, not just cost per click.

Criterion 3: Measurability and Attribution

Both platforms offer conversion tracking, but the attribution story differs. Search is closer to the final click, so last-click attribution (which gives 100% credit to the final ad clicked) doesn't punish it as much (Google Ads Help). Social often gets credit for view-through conversions—when someone sees an ad but doesn't click and later converts (Google Ads Help). That's actually a feature, not a bug: social's job is often to plant a seed, and view-through conversions capture that residual effect. But it also means you need a more sophisticated attribution model to see social's true value. Google has moved to data-driven attribution by default, which uses machine learning to spread credit across touchpoints (Google Ads Help). If you're still looking at last-click, you're probably undervaluing social.

Criterion 4: Creative and Format Flexibility

Search ads are text-based—you get headlines and descriptions, and Google tests combinations for you (responsive search ads support up to 15 headlines and 4 descriptions) (Google Ads Help). That's a tight creative canvas. Social, meanwhile, is a visual playground: video, carousel, stories, and native in-feed formats that blend into the platform (IAB Native). If your product needs to be seen to be believed, social is the place. If your product is a commodity and the search query is the message, search is enough.

Who Should Choose What

If you're a B2B company selling a high-ticket service, search is your workhorse—you want to catch people who are actively researching solutions. If you're a consumer brand launching a new flavor or a fashion line, social is your runway—you need to build desire. And if you're a retailer with a broad catalog, you might need both, but you can start with search for your best-sellers, and use social to retarget those who didn't convert. The point is: don't default to one because it's familiar. Let your funnel stage and product type dictate the platform.

Quick tip: If you're just starting out, allocate 70% of your budget to search and 30% to social—then shift based on where your conversions actually come from. Don't let platform dashboards fool you; use your own analytics to compare cost per acquisition.

What I'd Actually Do

Here's my recommendation: start with search if you have a clear, high-intent product or service—it's the fastest path to measurable ROI. Once you've got your search campaigns profitable, expand into social to build a retargeting pool and catch people who didn't convert on their first search. In 2025, social is too big to ignore—$117.7 billion in U.S. ad revenue proves it's where audiences live (IAB/PwC). But don't pour money into social just because it's trendy. Use search to harvest existing demand and social to plant seeds for future demand. That's the balanced approach that works.

Sources

• IAB/PwC Internet Ad Revenue Report FY2025 - https://www.iab.com/news/digital-ad-revenue-climbs-to-nearly-300b-as-iab-celebrates-30-year-anniversary/
• Google Ads Help (ad metrics) - https://support.google.com/google-ads/
• Google Ads Help (attribution models) - https://support.google.com/google-ads/answer/6259715
• Google Ads Help (responsive search ads) - https://support.google.com/google-ads/answer/7684791
• US Chamber of Commerce - https://www.uschamber.com/co/grow/marketing/what-is-digital-marketing